Old School RuneScape (OSRS) – How to Make Cannonballs

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Players in Old School RuneScape always strive to get the best weaponry they can when trying to complete PvM content, whether in slayer tasks or Raids. For the Ranged combat style specifically, the Dwarf Cannon Set allows them to speed up their kills much quicker while gaining steady Ranged experience.

But using the Dwarf Cannon Set comes at a cost in the form of Cannonballs, as the price for thousands of them can stack up high.

Recommended Read: Best Items to Flip in OSRS

In this article, I am going to discuss how you can make Cannonballs, as well as talk about some expected profits you can make if you wish to sell them directly on the Grand Exchange. Grab your smithing gloves and hammers because you’re going to need them today in Old School RuneScape!

Cannonballs are unlocked after completion of the “Dwarf Cannon” quest. Once doing so, you can use an Ammo mould and Steel bars on any furnace in the game to make Cannonballs in OSRS at 35 Smithing.

Furthermore, you can use the Double Ammo mould that’s unlocked from the Giant’s Foundry minigame to make Cannonballs at double the rate. It’s a straightforward process for some simple profit in Old School RuneScape!

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How to Make Cannonballs in Old School RuneScape

When it comes to making cannonballs in Old School RuneScape, it’s an easy process that does require any high requirements.

To get started, you need only partial completion of the “Dwarf Cannon” quest.

However, by the time you receive the ammo mould from the quest, you will only have a couple more steps to complete it, so you might as well finish the quest while you are there.

Cannonballs can be made at 35 Smithing by having the ammo mould from the quest in your inventory and using Steel bars on any furnace in the game.

If done correctly, you will get a prompt to make Cannonballs, where you can smith them at your leisure!

Consider reading our level 1-99 Smithing training guide if you want a deeper look into this popular skill!

For those wanting to double their experience rates and cannonball output, you may consider participating in the Giant’s Foundry minigame for a specific reward: the double ammo mould.

It does exactly what you think: make Cannonballs at double the rate by giving you 8 Cannonballs per Steel bar instead of four.

You can unlock the Double ammo mould in exchange for 2,000 Foundry Reputation points from the minigame.

Best Furnaces to Smith Cannonballs

As I mentioned, all you need to do to make cannonballs is use Steel bars in a furnace.

However, there are so many furnaces in the game that OSRS players are usually questioning what is the best one for them to reach (i.e., closest to a bank). 

Here are a few locations that I would recommend, as well as why they are beneficial:

Edgeville Furnace

If you’re not smithing cannonballs, you will have a chance of smelting two bars at the same time if you are wearing applicable tiers of the Varrock armour from the Achievement Diary.

Otherwise, it is the closest easily accessible one to a bank.

Al-Kharid Furnace

This furnace is close to a bank and the gold mine in the north portion of Al-Kharid.

This is good for F2P players who are trying to stack up on Gold ores to immediately smelt on their way back to the bank.

Shilo-Village Furnace

This is the closest furnace to a bank in the entire game; however, it costs 20gp for each time that you use it.

Not a bad price since you will get your money back smithing Cannonballs.

This furnace requires completion of the “Shilo Village” quest to use.

Prifddinas Furnace

Located in the Southeast portion of the city, this is the closest furnace to an anvil in the entire game. It is also extremely close to a bank.

This furnace requires completion of the “Song of the Elves” quest to use.

That is how you smith cannonballs in Old School RuneScape!

Have any input or suggestions for this guide? Let us know in the comment section below.


Kadence is an Old School RuneScape veteran with over 15 years of experience. They have been writing across various genres (in and outside of gaming) for years now, becoming a master of their craft at providing in-depth guides and explanations.

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